Web新人求助,在html中如何隐藏图片的真实地址?
本帖最后由 eakey 于 2013-06-04 20:22:00 编辑 <img src="http://b272.photo.store.qq.com/psb?/V122h2mV18h7Hj/z3nu2eC5bcpVCow8x35DGorRk7x.am2A3TbZO09QwyE!/m/dLv2IqKOEQAA&bo=IAMVAgAAAAABABM!">
src不用真实的url路径,而类似这样一串编码.这是如何做到的? URL
[解决办法]
对文件名称可以 加码
[解决办法]
估计人家又自己的一套编码机制，取图片地址时再解码！
[解决办法]
public class ResponseImg : IHttpHandler
{
static readonly DateTime Refresh;
static readonly DateTime Now;
static ResponseImg()
{
Now = DateTime.Now;
Refresh = Now.AddMonths(1);
}
public void ProcessRequest(HttpContext context)
{
if (!string.IsNullOrEmpty(context.Request.Headers["If-Modified-Since"]))
{
DateTime IfModifiedSince = DateTime.Parse(context.Request.Headers["If-Modified-Since"]);
if (IfModifiedSince > Now)
{
context.Response.StatusCode = 304;
return;
}
}
//string folder = context.Request.QueryString["Folder"];
string filepath = context.Request.QueryString["FilePath"];
int width = int.Parse(context.Request.QueryString["Width"]);
int height = int.Parse(context.Request.QueryString["Height"]);
string hex = context.Request.QueryString["Hex"];
string path = context.Server.MapPath(string.Format("/Img/{0}", filepath));
byte[] bytes = ImageHelper.Reset(path, width, height);
//System.Drawing.Image img = ImageHelper.Reset(bytes, width, height);
context.Response.Headers["Last-Modified"] = Refresh.ToString();
//context.Response.Cache.SetExpires(DateTime.Now.Add(Refresh));
//context.Response.Cache.SetMaxAge(refresh);
context.Response.Cache.SetCacheability(HttpCacheability.Public);
context.Response.CacheControl = HttpCacheability.Public.ToString();
context.Response.Cache.SetValidUntilExpires(true);
//context.Response.StatusCode = 304;
//img.Save(context.Response.OutputStream, ImageHelper.GetImageFormat(path));
context.Response.ContentType = "image/" + hex;
context.Response.BinaryWrite(bytes);
}
public bool IsReusable
{
get
{
return false;
}
}
}
